What is a bunker-busting bomb?
A bunker-busting bomb is a type of weapon designed to penetrate deeply buried and reinforced underground targets.
Military / Geopolitics
The United States has deployed its latest and second-most-powerful bunker-busting bomb, the GBU-72, against fortified targets in Iran, marking its first combat use. The strikes targeted sites along the Iranian coastline near the Strait of H...
On March 17, 2026, the United States military employed the GBU-72 Advanced 5K Penetrator bombs against Iranian missile sites. These sites were located along the Iranian coastline near the Strait of Hormuz and were believed to contain anti-ship cruise missiles, posing a significant threat to commercial shipping in the area.
The GBU-72 is designed to penetrate deeply buried, reinforced underground targets, such as missile sites, command centers, and nuclear facilities. It replaces the GBU-28, a 5,000-pound bunker-buster bomb first used in 1991 during Operation Desert Storm. The GBU-72 is considered substantially more lethal than its predecessor.
While fighter jets and bombers can carry both the GBU-72 and GBU-28, the GBU-57 Massive Ordnance Penetrator remains the most powerful bunker-buster in the U.S. arsenal. Only U.S.-made B-2 Spirit stealth bombers are capable of carrying the GBU-57s, which weigh over 30,000 pounds.
A bunker-busting bomb is a type of weapon designed to penetrate deeply buried and reinforced underground targets.
The GBU-72 is more lethal than its predecessor, the GBU-28, and is designed to minimize damage above ground while effectively neutralizing underground targets.
Do you think this deployment of the GBU-72 will de-escalate or further escalate tensions in the region? Let us know!
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